Building an IndieWeb Reader by Aaron Parecki
There's a lot to like in this description (I haven't tried out the actual product) of a reader that in many ways resembles what I'm trying to do with gRSShopper. This is a hard project: "there are a whole bunch of different parts to building a reader, many of which have no overlap in skillset: managing the subscription list, polling and fetching feeds, parsing feeds, data storage, rendering posts in a UI, providing inline action buttons to be able to reply and favorite posts, etc." There are some nice bits, especially the interoperability with Twitter and Github.
Also on Twitter